On the Coercivity Mechanism in Fe-(REM)-B Magnets

On the Coercivity Mechanism in Fe-(REM)-B Magnets

A model describing the remagnetization process in Fe‐Nd‐B‐type magnets is formulated. A poly‐crystalline magnet is regarded as an ensemble of clusters, consisting of grains mutually contacting with each other in places of magnetic isolation gaps. The remagnetization of a crystallite takes place by m...

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Veröffentlicht in:Physica status solidi. A, Applied research Applied research, 1992-01, Vol.129 (1), p.263-269
Hauptverfasser: Sazonov, S. N., Valiev, R. Z.
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Sprache:eng
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Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Domain effects, magnetization curves, and hysteresis
Exact sciences and technology
Magnetic properties and materials
Metals. Metallurgy
Physics
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Valiev, R. Z.
description A model describing the remagnetization process in Fe‐Nd‐B‐type magnets is formulated. A poly‐crystalline magnet is regarded as an ensemble of clusters, consisting of grains mutually contacting with each other in places of magnetic isolation gaps. The remagnetization of a crystallite takes place by means of reversed domain nucleation in a region, joint with just the remagnetized one. The grain size dependence of the coercive force is determined and its correspondence with experimental data is discussed.
doi_str_mv 10.1002/pssa.2211290126
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subjects Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Domain effects, magnetization curves, and hysteresis
Exact sciences and technology
Magnetic properties and materials
Metals. Metallurgy
Physics
title On the Coercivity Mechanism in Fe-(REM)-B Magnets
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